Glass-Resin Display Window Structure for Foldable Assembly
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Solution Overview
Problem
Existing display devices face defects in assembly processes and have issues with housing assembly errors, particularly in foldable devices, which affect their breaking strength and portability.
Innovation Solution
A display device design featuring a glass portion with a synthetic resin portion overlapping its sides and a light-blocking pattern, combined with a chemically strengthened glass substrate, where the resin portion is cut to maintain breaking strength and reduce assembly errors, allowing for accurate coupling to the housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a glass portion is used for the window, then the breaking strength is improved, but the manufacturing precision deteriorates due to difficulty in cutting and assembling
Solution Approach 1:
The window is divided into multiple portions: a glass portion providing breaking strength and a synthetic resin portion providing flexibility and ease of cutting. The synthetic resin portion can be cut along predetermined lines to create gaps that facilitate precise assembly with the housing, while the glass portion maintains structural integrity.
Solution Approach 2:
The window combines glass and synthetic resin materials in a composite structure. The glass portion provides high breaking strength, while the synthetic resin portion provides ease of manufacture and cutting. This composite approach allows each material to contribute its advantageous properties to the overall window structure.
2Manufacturing precision
If the glass portion is cut to fit the housing, then the assembly precision is improved, but the breaking strength deteriorates
Solution Approach 1:
The window is segmented into a glass portion and a synthetic resin portion. The synthetic resin portion is designed with cuttable edges that can be precisely fitted to the housing, while the glass portion remains intact to maintain breaking strength. The segmentation allows different parts to serve different functions regarding cutting and strength.
Solution Approach 2:
Different portions of the window have different material properties optimized for their specific functions. The synthetic resin portion has properties optimized for cutting and fitting (ease of manufacture), while the glass portion has properties optimized for strength (breaking strength). This local optimization of material quality resolves the contradiction.
3Weight of moving object
If a thin glass substrate is used, then the portability is improved, but the breaking strength deteriorates
Solution Approach 1:
The window uses a composite structure combining thin glass and synthetic resin. The thin glass portion provides portability with minimal weight, while the synthetic resin portion compensates for the reduced breaking strength by providing structural support and flexibility. This allows the display device to be portable while maintaining adequate breaking strength.
Solution Approach 2:
The glass substrate is made thin in regions where portability is critical, while the synthetic resin portion provides localized reinforcement to maintain breaking strength. This local quality differentiation allows optimization of both portability and strength without requiring uniform thickness throughout.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design enhances the breaking strength of the display device while reducing assembly errors, ensuring high portability and reliability in foldable devices.
Implementation Method 1
a chemically strengthened glass substrate
Data Source
AI summary
A display device includes a window, a display panel disposed below the window, and an adhesive layer disposed between the window and the display panel. The window includes a glass portion, and a synthetic resin portion overlapping at least a side surface of the glass portion and exposing the upper surface of the glass portion.